Month: November 2022

《Open circuit potential of electroless copper plating on tungsten particles》 was written by Liu, Qiang; Xu, Rui-dong; He, Shi-wei. Computed Properties of C4H12KNaO10This research focused ontungsten electroless copper plating open circuit potential. The article conveys some information:

The open circuit potential of electroless copper plating on process was measured by electrochem. workstation, and the copper-coated tungsten composite powder and tungsten strip after plating were characterized. The results showed that during electroless copper plating, the initial open circuit potential was about -600 mV, and changed through slight increase and rapid drop, and became stable at about -870 mV in a short time, then followed a sharp rise, and finally reached -690 mV in 300 s, in the meantime it remained stable and the copper thin-film plating was accomplished. The composite complexing agent of ethylenediamine tetraacetic acid disodium salt (EDTA·2Na) and potassium sodium tartrate tetrahydrate (TART) could facilitate the copper plating reaction through adjusting the charge distribution on the surface of tungsten particles. Trace (≤ 10 mg/L) of 2,2′-bipyridine could effectively restrain the formation of Cu2O and improve the quality of the film. In the part of experimental materials, we found many familiar compounds, such as Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Computed Properties of C4H12KNaO10)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Computed Properties of C4H12KNaO10 Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Structure-function studies of the aminothiol radioprotectants. Effect of carbon chain length in mercaptoethylamine homologs. Mammalian radioprotection》 was published in Radiation Research in 1971. These research results belong to Grenan, Marie M.; Copeland, Edmund S.. Safety of 5-Aminopentane-1-thiol hydrochloride The article mentions the following:

Of the 5 aminothiols (I) studied, only β-mercaptoethylamine-HCl (II) (0.7 mM/kg, i.p.) showed a radioprotective effect in mice treated with an LD70(30) radiation dose (875 rads). This result is in contrast to those of previous studies in bacteria where pharmacological effects were avoided and only phys.-chem. effects were studied. In the experiment, the researchers used many compounds, for example, 5-Aminopentane-1-thiol hydrochloride(cas: 31110-78-8Safety of 5-Aminopentane-1-thiol hydrochloride)

5-Aminopentane-1-thiol hydrochloride(cas: 31110-78-8) belongs to thiols. Thiols show many reactions like those of the hydroxyl compounds, such as formation of thioesters and thioethers (sulfides). Toward oxidation, however, they differ profoundly from alcohols: whereas oxidation of an alcohol usually leads to a product in which the oxidation state of a carbon atom has been changed, oxidation of a thiol affects the sulfur atom. Safety of 5-Aminopentane-1-thiol hydrochloride

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Synthesis of a series of M(II) (M = Mn, Fe, Co) chloride complexes with both inter- and intra-ligand hydrogen bonding interactions》 was written by Leahy, Clare A.; Drummond, Michael J.; Vura-Weis, Josh; Fout, Alison R.. Quality Control of 2-Hydroxyphenylboronic acidThis research focused ontransition metal chloro pyrrolyl pyridyl phenolate complex preparation; crystal structure transition metal chloro pyrrolyl pyridyl phenolate complex. The article conveys some information:

Hydrogen bonding networks are vital for metalloenzymes to function; however, modeling these systems is non-trivial. The authors report the synthesis of metal chloride (M = Mn, Fe, Co) complexes with intra- and inter-ligand hydrogen bonding interactions. The intra-ligand hydrogen bonds have a profound effect on the geometry of the metal center. In the part of experimental materials, we found many familiar compounds, such as 2-Hydroxyphenylboronic acid(cas: 89466-08-0Quality Control of 2-Hydroxyphenylboronic acid)

2-Hydroxyphenylboronic acid(cas: 89466-08-0) belongs to acyl phenylboronic acid. Phenylboronic acid (PBA), a synthetic molecule applied in RNA affinity chromatography, is able to form reversible covalent ester bonds with 1,2- or 1,3-cis-doils on the ribose ringQuality Control of 2-Hydroxyphenylboronic acid

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Transition-Metal-Free Homologative Cross-Coupling of Aldehydes and Ketones with Geminal Bis(boron) Compounds》 was written by Stephens, Thomas C.; Pattison, Graham. Electric Literature of C13H26B2O4This research focused ontransition metal free homologative cross coupling aldehyde ketone; geminal bis boron compound homologative cross coupling aldehyde ketone; homologated carbonyl compound preparation. The article conveys some information:

Authors report a transition-metal-free coupling of aldehydes and ketones with geminal bis(boron) building blocks which provides the coupled, homologated carbonyl compound upon oxidation This reaction not only extends an alkyl chain containing a carbonyl group, it also simultaneously introduces a new carbonyl substituent. Authors also demonstrated that enantiopure aldehydes with an enolizable stereogenic center undergo this reaction with complete retention of stereochem. In the experimental materials used by the author, we found Bis[(pinacolato)boryl]methane(cas: 78782-17-9Electric Literature of C13H26B2O4)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Electric Literature of C13H26B2O4 Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Zn(II)-Dipicolylamine analogues with amphiphilic side chains endow low molecular weight PEI with high transfection performance》 was written by Chen, Zhaoming; Wang, Xindong; Liu, Shuai; Li, Yumeng; Zhou, Hao; Guo, Tianying. Computed Properties of C4H11NOThis research focused onzinc dipicolylamine polyethylenimine DNA transfection cyctotoxicity. The article conveys some information:

To investigate the effect of amphiphilic balance of Zn(II)-dipicolylamine analogs on the transfection process, we fabricated a series of Zn(II)-dipicolylamine functional modules (DDAC-Rs) with different hydrophilic-phobic side chains to modify low mol. weight PEI (Zn-DP-Rs) by the Michael addition reaction. Zn-DP-Rs with hydrophilic terminal hydroxy group side chains demonstrate superior overall performance compared to those of hydrophobic alkyl side chains. In terms of the influence of the chain lengths in DDAC-Rs, from Zn-DP-A/OH-3 to Zn-DP-A/OH-5, the corresponding transfection efficiency shows an upward trend as the lengths increase. However, decreasing efficacy is observed with further increase in the length of side chains. In addition, the Zn-DP-Rs with amphiphilic side chains show prominent performance in every respect, highlighting the significance of balance in the amphipathy of side chains in DDAC-Rs. This work is of great significance for the development of polycationic gene carrier materials with excellent performance. The results came from multiple reactions, including the reaction of 4-Aminobutan-1-ol(cas: 13325-10-5Computed Properties of C4H11NO)

4-Aminobutan-1-ol(cas: 13325-10-5) is used in the synthesis of NSAIDs with anti-inflammatory properties. Also used in the synthesis of polyamine transport ligands with specificity against human cancers allowing easy access to specific cancer cells.Computed Properties of C4H11NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Product Details of 2525-05-5On March 31, 1979, Hulisz, Stanislaw; Wawek, Janina published an article in Przemysl Chemiczny. The article was 《Study on the effectiveness of inhibiting furfural autoxidation》. The article mentions the following:

Furfural autoxidation was inhibited by adding 0.01 weight% p-HOC6H4NH2, N(CH2CH2OH)3, 3,4-(HO)2C6H3Bu, HCONH2 or p-(HO)2C6H4. The effectiveness of the additives decreased in the stated order of compounds; the 1st 3 are recommended. The experimental part of the paper was very detailed, including the reaction process of 4-Butylbenzene-1,2-diol(cas: 2525-05-5Product Details of 2525-05-5)

4-Butylbenzene-1,2-diol(cas: 2525-05-5) belongs to organoboron compounds. Organoboron compounds are versatile intermediates and as such are some of the most important classes of reagents in modern organic chemistry. Organoboron compounds are less toxic than organostannane reagents, and unlike alkynylzinc and magnesium, many organoboron compounds possess remarkable oxidative and thermal stabilities. Product Details of 2525-05-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Burcat, Alexander published their research in Combustion and Flame on December 31 ,2020. The article was titled 《Thermochemistry of computed gaseous energetic compounds: Cellulose nitrate》.Application In Synthesis of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol The article contains the following contents:

The thermochem. of gaseous Cellulose, Cellulosedinitrate and Cellulosetrinitrate basic cells, was calculated and is presented as numerical values and as NASA-7-term polynomials. The problem of representing and calculating thermochem. values of cell polymers is discussed. In the experiment, the researchers used rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Application In Synthesis of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol)

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is the monohydrate form of the alpha isoform of D-glucopyranose, a synthetic simple monosaccharide that is used as an energy source.Application In Synthesis of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2003,Tetrahedron Letters included an article by Mourtas, Spyros; Katakalou, Christina; Nicolettou, Andriana; Tzavara, Chryssoula; Gatos, Dimitrios; Barlos, Kleomenis. Related Products of 31110-78-8. The article was titled 《Resin-bound aminothiols: synthesis and application》. The information in the text is summarized as follows:

Aminothiols were attached through their thiol group onto the 4,4′-dimethoxytrityl (Dmt)-, 4-methoxytrityl (Mmt)-, 4-methyltrityl (Mtt)-, trityl (Trt)- and 2-chlorotrityl (Clt)-resins. The new resins were used in the solid-phase synthesis of aminothiol containing peptides utilizing N-Fmoc amino acids. The synthesized peptides were cleaved from the resins by treatment with trifluoroacetic acid (TFA) solutions using triethylsilane (TES) or ethanedithiol (EDT) as scavengers. The results came from multiple reactions, including the reaction of 5-Aminopentane-1-thiol hydrochloride(cas: 31110-78-8Related Products of 31110-78-8)

5-Aminopentane-1-thiol hydrochloride(cas: 31110-78-8) belongs to thiols. Thiols show many reactions like those of the hydroxyl compounds, such as formation of thioesters and thioethers (sulfides).Related Products of 31110-78-8 Toward oxidation, however, they differ profoundly from alcohols: whereas oxidation of an alcohol usually leads to a product in which the oxidation state of a carbon atom has been changed, oxidation of a thiol affects the sulfur atom.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nachtigall, Carsten; Berger, Christiane; Kovanovic, Tijana; Wefers, Daniel; Jaros, Doris; Rohm, Harald published their research in Food Hydrocolloids on December 31 ,2019. The article was titled 《Shear induced molecular changes of exopolysaccharides from lactic acid bacteria》.Electric Literature of C6H12O6 The article contains the following contents:

Exopolysaccharide (EPS) producing lactic acid bacteria are known for their pos. effect on the texture of fermented dairy products, with their high water binding capacity causing changes in rheol. and syneresis reduction During manufacture, product texture is affected by shearing with an unknown impact on the properties of the EPS. By subjecting aqueous solutions of viscosity enhancing EPS from Streptococcus thermophilus DGCC7710 or dextran to defined shear treatments with a Microfluidizer, a cell disruption system or a toothed ring dispersion unit to apply different energy input, we investigated macromol. properties and the behavior in solution Despite the breakage of covalent bonds, spectroscopic NMR analyses revealed that repeating unit structure remained unchanged, whereas changes in macromol. properties such as intrinsic viscosity, hydrodynamic volume, and mol. mass strongly depended on energy input. The decrease of the dynamic viscosity of the polysaccharide solutions was significantly related to the observed decrease in mol. mass, and the impact of the EPS on technofunctional properties such as contribution to gel stiffness during acid gel formation was also affected. The results therefore indicate that mech. energy input through shearing should be considered because product texture may be altered as a consequence of a mech. breakdown of EPS mols. The experimental part of the paper was very detailed, including the reaction process of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Electric Literature of C6H12O6)

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is oxidized in various tissues under either aerobic or anaerobic conditions through glycolysis; the oxidation reaction produces carbon dioxide, water, and ATP.Electric Literature of C6H12O6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Roy, Niloy; Bomzan, Pranish; Nath Roy, Mahendra published an article in Chemical Physics Letters. The title of the article was 《Probing Host-Guest inclusion complexes of Ambroxol Hydrochloride with α- & β-Cyclodextrins by physicochemical contrivance subsequently optimized by molecular modeling simulations》.Reference of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride The author mentioned the following in the article:

Herein, we report the inclusion of AMB in cyclodextrins leading to host-guest assemblies. The inclusion complexes comprised of Ambroxol Hydrochloride (AMB) with α-cyclodextrin (αCD) and β-cyclodextrin (βCD) have been confirmed by exptl. (UV-vis titration, FTIR, ESI-MS, 1NMR, 2D-NMR) and computational studies (mol. docking, mol. mechanics calculation). The mol. docking studies demonstrate a better insight into geometry and inclusion mode of AMB inside αCD as well as βCD cavity. Formation of inclusion complexes with different cyclodextrins causes some structural changes of guest mols. during the encapsulation process confirmed by bond length, dihedral angle changes and dynamic simulations. In the experiment, the researchers used trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4Reference of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride)

trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4) is a mucolytic expectorant and a metabolite of bromhexine.Reference of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride It is used in the treatment of respiratory disorders characterized by viscous or excessive mucus.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts